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If time is 4/19/2012 12:34:56, change the time to 4/19/2012 12:30:00.<br />
If time is 4/19/2012 12:36:56, change the time to 4/19/2012 12:35:00.<br />
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So basically change the minute part to the last 5-minute time and remove the second.<br />
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In MySQL, it would be like:<br />
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<pre><code id="code-10-27684413-1">DATE_SUB(DATE_SUB(aTime, INTERVAL MINUTE(aTime)%5 MINUTE), INTERVAL SECOND(aTime) SECOND)</code></pre>
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If time is 4/19/2012 12:34:56, change the time to 4/19/2012 12:30:00.
If time is 4/19/2012 12:36:56, change the time to 4/19/2012 12:35:00.

So basically change the minute part to the last 5-minute time and remove the second.

In MySQL, it would be like:

(CODE)

What's the fastest way to change the time based on the following rule in Java?

Java is a platform-independent, object-oriented programming language and run-time environment, designed to have as few implementation dependencies as possible such that developers can write one set of code across all platforms using libraries. Most devices will not run Java natively, and require a run-time component to be installed in order to execute a Java program.